片上螺旋电感的一种新增强型单π模型  

A new modified single-π model for on-chip spiral inductors

作　　者：李成玮 马铭磷[1,2,3] 金湘亮[2,3] 陈媛[1] 李志军[1] 

机构地区：[1]湘潭大学信息工程学院,湖南湘潭411105 [2]微光电与系统集成湖南省工程实验室,湖南湘潭411105 [3]湘潭大学物理与光电工程学院,湖南湘潭411105

出　　处：《云南大学学报（自然科学版）》2016年第2期204-210,共7页Journal of Yunnan University(Natural Sciences Edition)

基　　金：国家自然科学基金(61233010;61176030);湖南省自然科学基金(2015JJ2140);湖南省教育厅科学研究一般项目(14C1072)

摘　　要：针对片上螺旋电感提出了一种新型增强型单π等效电路模型.在宽频范围内,该模型仿真数据和HFSS中电磁仿真数据呈现出很好的拟合结果.所提模型充分考虑了高频下的衬底耦合效应、趋肤效应和邻近效应,基于电磁仿真得到的Y参数,采用拟线性函数法和二端口网络分析法来解析提取电路元件参数值,且所提参数无需进行优化.将各元件参数值应用于该对称单π等效电路,在0-20 GHz范围内可以精确地模拟片上螺旋电感各参数随频率变化的特性,从而验证了等效电路模型的准确性.A new modified single- π equivalent circuit model for on- chip spiral inductors is presented. It shows a good fitting result between the simulated data of this model and the EM simulated data in HFSS over a wide frequency range.The proposed model takes full account of the substrate coupling effect,the skin and proximity effects at high frequencies,component parameter values of the circuit are analytically extracted based on Y-parameters using the method of quasi-linear functions and the two-port network analysis derived from EM simulation without any optimization. As applied to the symmetric single-π equivalent circuit,it can simulate the frequency variation characteristics of different parameters for on-chip spiral inductors with a high precision from 0 to20 GHz,and verify the accuracy of the equivalent circuit model.

关 键 词：单π等效电路模型 参数提取 衬底耦合 高精度 

分 类 号：TN61[电子电信—电路与系统]